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Use ACP-compatible harnesses with the AI SDK harness layer

What happened

The AI SDK harness layer now supports any Agent Client Protocol (ACP)-compatible harness with HarnessAgent through the new @ai-sdk/harness-acp package. Previously, every harness adapter wrapped one specific runtime (Claude Code, Codex, Pi, Deep Agents, OpenCode). @ai-sdk/harness-acp wraps the protocol instead. It is a meta adapter: rather than adapting a single harness, it lets you build an adapter for any harness t…

Summary assembled by rule from the sources below

Why it's spreading

  • ConfirmedVercel Blog published a first-party announcement

Timeline

  1. First appeared on Vercel BlogVercel Blog

Sources